The Lord of the Rings: The Return of the King Cheats

The the map should be 'Anduin River - Corsair Camp'. Talk to the old lady at the north of the map to do the Missing Brother Sidequest. After you return her brother, talk to her again, she'll drop a random item and you obtain 1 stat point as well. Proceed south from here, you'll meet the old lady again. Talk to her and defeat the Corsairs. After that, she'll open up her barn (or ranch), then talk to her and she'll drop another item. Save, quit, reload and repeat. (Note: If you didn't talk to the old lady after she opened the barn, when you reload, the game will know you've finished the missing brother sidequest, which means you can never get the 1stat point reward from her again.)

Many people like myself don't have a Gamecube or GBA-GC Link so here's how to unlock Sam without one. First you may want to beat the game with Frodo to get all of the artifacts in his quest so then if you have all of the artifacts you can play at Weathertop with Sam. Then start a new game as Frodo. Make it through Shelob's tunnel and Shelob will ambush you making you have to use Sam. Save the game during the fight with Shelob then quit. Now you can hook up the Gameboy Advance link cable with Sam or play on bonus maps with Sam.
This could also be used for training Sam against Shelob if your having trouble.

(NOTE: You'll need at least one blank save slot) To duplicate good items that you find in your quest, just:
1) Get to a level with any Forge or Shrine and a Ranger Hollow.
2) Have the item(s) in your inventory.
3) Save the game as normal, then save it to all the blank save slots you have.
4) Quit the game, start up one of the games in the save slots you just filled, and put the item(s) in the Ranger Hollow of the level.
5) Do this with all the save slots you filled.
6) Go back to your main save, and take all the items out of the Ranger Hollow, you know have duplicates of your item.
7) Repeat as wanted.